Document Information

Document Type: FAQ

Product(s): LEAP Conbox/CIP RC/PT Girder

Version(s): All

Original Author: Bentley Leap Bridge Technical Support Group – VM

QUESTION: How does CONBOX calculate the live load distribution factor when the range of applicability of Table 4.6.2.2.2b-1 is not satisfied (for example when number of cells is less than 3)?

ANSWER:

For box girder with less than 3 cells . The program designs the box girder by 2 cell methodology and 1 cell methodology.  These methodology is basically based on Caltrans Amendments to AASHTO LRFD bridge design specifications – 4-36A and 4-41A.